CVE-2026-73727 Authenticated Sensitive Information Disclosure in HPE Networking Fabric Composer API

Medium 6.5 Published 1 Sep 2026 Updated 2 Sep 2026

Authenticated low-privilege users can access sensitive information beyond their authorization, potentially leading to further network access.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2026-73727?

CVE-2026-73727 is a medium-severity missing authorization vulnerability in Arubanetworks Fabric Composer, published on 1 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Vulnerabilities in the API of HPE Networking Fabric Composer could allow an authenticated low privilege operator user to access sensitive information. A successful exploit allows an attacker to access data beyond what is authorized by the user's existing privilege level, which could be used to potentially gain further access to network services supported by HPE Networking Fabric Composer.

Weakness: CWE-863, CWE-284

Which versions are affected by CVE-2026-73727?

It affects 1 product.

Products include Arubanetworks Fabric Composer.

How do I fix CVE-2026-73727?

No fix has been published for CVE-2026-73727 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2026-73727 being exploited?

There is no known exploitation of CVE-2026-73727 in the wild and no public exploit code.

All Arubanetworks Fabric Composer vulnerabilities

Sources

Also known as GHSA-qgqx-v3hf-wg5j.